American Capital Agency reports Q2 EPS 60c, consensus 64cAs of June 30, the company's net book value per common share was $24.00, or ($1.53) lower than its March 31, 2015 net book value per common share of $25.53. The 6.0% decline in the company's net book value per common share was primarily due to higher interest rates and wider spreads for agency MBS relative to benchmark interest rates.